Map of the St. Louis area showing the position and track of the aircraft described in the post.

🇺🇸 N77871 - Boeing 757 33N/W - United Airlines UAL739/UA739 (OMA-ORD-IAH) - 4.2 mi away @ 34250 ft, heading SW at 526 mph. Spotted 5x before! [07:36:53 PM CST] #AA8A26 #N77871 #B753 #UNITED #UAL739 #UA739 #ADSB #ADSBbot

Map of the St. Louis area showing the position and track of the aircraft described in the post.

🇺🇸 N77871 - Boeing 757 33N/W - United Airlines UAL739/UA739 (OMA-ORD-IAH) - 4.0 mi away @ 31350 ft, heading SW at 488 mph. Spotted 4x before! [07:36:31 PM CST] #AA8A26 #N77871 #B753 #UNITED #UAL739 #UA739 #ADSB #ADSBbot